Im man enough to admit when I'm wrong.
It has a heart rate monitor and you can take it with you wherever without the switch, work out with it, connect it to the switch and it gives you xp points.
It's promotes a positive way to work out and have fun, the premise is kind of silly but being 100% honest that second feature is dope.
I'm hoping they can somehow integrate this with fitness boxing. Either attaching the joy-con to the leg to track movement or the heart rate monitor aspect for those who don't have their own heart rate monitor.
Maybe it's math but as my stats and results have shown from what I've posted about fitness boxing the calorie counter and what my polar heart rate monitor which is attached to my chest shows are very comparable.